Improvement in subsoil gang-plows



G. MY ER S.

Subsoil Gang-Flows.

N0 'l45,361 Patented Dec. 9,1873.

Witnesses:

PATENT FEIOEc CHRISTIAN MYERS, OF MARYSVILLE,

CALIFORNIA, ASSIGNOR TO HIMSELF AND FRANCIS J. SCHAEFFER, OF DAVENPORT,IOWA.

IMPROVEMENT IN SUBSOIL GANG-FLOWS.

Specification forming part of Letters Patent No. 145,361, dated DecemberD, 1873; application tiled August 16, 1873.

To all whom it may concern:

Be it known that I, CHRIsTIAN MYERS, of Marysville, in the county ofYuba and State of California, have invented a new and Improved SubsoilGang-Plow, ot' which the :following is a speeiiication:

In the accompanying drawing, Figure 1 represents a side elevation of myimproved sub soil gang-plow; Fig. 2, a top view of the same; and Figs. 3and 4, detail end and bottom views of the plowshare.

Similar letters of reference indicate corresponding parts.

The invention will first be fully described, and then pointed out in theclaim.

In the drawing, A represents the plow-frame, to whose front part is hung, in arms or bars a, the cross-bar or shaft I), which carries at itsouter ends the forward extending arms B. The square axle C of theplow-wheels passes through perforations of the arms B, which are firmlyapplied thereon by set-screws d, which are let into arms B from the foreend Of the saine. One of the arms B is provided at right angles with anupward-proj ectin g arm, B', centrally on arm B, and pivoted to anintermediate link or piece, D, which is again pivoted to an arm, E,applied at right angles to the leverbeam F. Lever F is pivoted to thefront part ot frame A, and produces, on bein g raised into a verticalpOsiton,'t-he lowering` of the plowirame, and consequently thedepression of the gan g-plows at the rear part of the frame, while onbeing lowered the plows are elevated from the soil. The rotation of axleC carries thereby the whole frame with it, and adapts it to the use ofone or two plows in the same gang.

To make the plowshare G detachable, I produce the same in one piece withthe point H, and extend the latter back to the full length of theland-side H. A hook, e, is welded to the lower side of share G in thelongitudinal direction of the same, and slightly rounded ott' at thelower side to oii'er less resistance to the earth. rIhe rear part ofpoint H is provided with an oblong aperture, j', which corresponds witha similar one, f', of the land-side Il. rIhe land-side H is recessed forthe extension Ot' point H, and the under side G of the plow extendedforward,and provided with an Oblong` aperture, c', through which hook eis introduced. The share Gr is then carried toward the land-side tillhook e closes rmly on the under side G', and the rear part of point Hinto the recess of land-side H. A wedge or key, g, is then driventhrough the holes fj", fastening thereby the share G rigidly andstrongly to the supporting parts of the plow, allowing at the same timethe ready taking oit', sharpening, or replacing of the share.

Having thus described my invention, I claim as new and desire to secureby Letters Patent- The combination of detachable share G, having hooks cand rear extension ot' point H, with under side Gr and land-side H', bymeans ot slot c', apertures fj, and wedge-piece g, for

the purpose set forth.

CHRISTIAN MYERS.

fitnessesz JOHN N. CRAWFORD, J. A. CRAWFORD.

